You have configured a new MGCP gateway on your Cisco Unified Communications Manager servers but the endpoints are shown with status "None". What are two possible solutions for this registration issue? (Choose two)
A. Configure the voice-VLAN interface of the MGCP gateway with mgcp-gateway voip interface command to set the source IP address of the MGCP packets correctly.
B. Ensure that you have configured the mgcp call-agent command with the Cisco Unified Communications Manager server address or hostname.
C. Enable the endpoint voice interface for backhauling in interface configuration mode with the isdn bind-l3 ccm-manager command
D. Ensure that you have configured the ccm-manager call-agent command with the correct Cisco Unified Communications Manager server address or hostname.
E. Activate the MGCP Feature service on all call-processing servers in the cluster.
Can’t be B & D, i pick B and C.